Hi,

I have a diagram which has several nodes. For some of them, I wanted to restrict the movement only to horizontal. I tried to modify the event args in the NodeModifying handler by using nodeValidationEventArgs.MousePosition.Offset method, but to no effect.
Any idea how to make this? Maybe there is yet another hidden MindFusion feature for this

P.S. HandlesStyle is set to InvisibleMove, and the diagram to Behavior="Modify" ModificationStart="AutoHandles" if it makes any difference.

Thanks! And how can I forbid the movement at all for a specific node type (to allow only the resize)?

It works great, thank you!

If you mean the node should visually stop at x = 40 while being dragged, at this time that can be done by attaching your nodes to some locked transparent node that defines the allowed area, and setting their KeepInsideParent constraint. If you are using custom nodes, you could also enforce this in a UpdateModify override. Otherwise, you could move the node to x=40 from the NodeModified handler if you detect it was moved to the left of 40.

I hope that helps,
Stoyan

Try enabling the diagram's AutoResize and AutoScroll properties.

I hope that helps,
Stoyan